Field emission property of ZnO nanoneedle arrays with different morphology

被引：18
作者：
Zhang, Guanghua [1 ,2 ]
Wei, Lin [3 ]
Chen, Yanxue [1 ,2 ]
Mei, Liangmo [1 ,2 ]
Jiao, Jun [4 ]
机构：
[1] Shandong Univ, Sch Phys, Jinan 250100, Peoples R China
[2] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
[3] Shandong Univ, Sch Informat Sci & Engn, Jinan 250100, Peoples R China
[4] Portland State Univ, Dept Phys, Portland, OR 97207 USA
来源：
MATERIALS LETTERS | 2013年 / 96卷
基金：
中国国家自然科学基金;
关键词：
ZnO nanoneedles; Field emission; Crystal growth; Semiconductors; GENERATION; NANORODS; GROWTH;
D O I：
10.1016/j.matlet.2013.01.028
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
ZnO nanoneedle arrays were prepared using a chemical solution route on fluorine-doped SnO2 conductive glass at low temperature. Crystal structure and morphology of the samples were characterized by X-ray diffraction, scanning electron microscope and high-resolution transmission electron microscope. All the results indicate that high quality ZnO nanoneedles array were grown vertically on the substrates along the (0001) direction. The morphology of the ZnO nanoneedles was controlled by 1-3-diaminopropane concentration. As the concentration of 1-3-diaminopropane increases, transformation from ZnO nanorod to ZnO nanoneedle was realized. Correspondingly, an enhanced field emission property was observed in the ZnO nanoneedle array with sharper tip. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：131 / 134
页数：4
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